s3nate - the gutman paper is fairly well known - I'm sure theres a link to it on the Eraser website (see Irongeeks post above) - if not a copy of it used to be included in Erasers help file.

Myself I also user eraser, its free, open source and is better than most IMHO.

As for it not being s3nates PC.... renegade... I think we may be jumping the gun a little suggesting what he's doing is illegal.... he says he has to give it back... implying the person who actually owns the comp knows s3nate has it. I've been in this situation before too... though I saved all my stuff to a flash drive in the first place - this could be a perfectly legitimate request (albeit embarassing if s3nate has been surfing for 'material' etc).

s3nate one word of warning though... just make sure you don't wipe the whole drive... you'll have to reinstall stuff if you do

Z